| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 10 Jun 1981 | USD | 30 | 30.504 | 30 | 30 | 0.9375 | 0.0 (0.0%) | 1,200 |
| 9 Jun 1981 | USD | 30 | 30.504 | 30 | 30 | 0.9375 | -0.504 (-1.65%) | 5,500 |
| 8 Jun 1981 | USD | 30.504 | 31 | 30.504 | 30.504 | 0.9533 | -0.248 (-0.81%) | 10,700 |
| 5 Jun 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 25,200 |
| 4 Jun 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 27,200 |
| 3 Jun 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 1,200 |
| 2 Jun 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 6,200 |
| 1 Jun 1981 | USD | 30.752 | 31.128 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 14,400 |
| 29 May 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | 0.0 (0.0%) | 17,500 |
| 28 May 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | +0.248 (+0.81%) | 15,000 |
| 27 May 1981 | USD | 30.504 | 31 | 30.504 | 30.504 | 0.9533 | -0.248 (-0.81%) | 5,000 |
| 26 May 1981 | USD | 30.752 | 31 | 30.752 | 30.752 | 0.961 | +0.496 (+1.64%) | 28,100 |
| 25 May 1981 | USD | 30.256 | 30.256 | 30.256 | 30.256 | 0.9455 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 30.256 | 30.752 | 30.256 | 30.256 | 0.9455 | 0.0 (0.0%) | 3,100 |
| 21 May 1981 | USD | 30.256 | 30.504 | 30.256 | 30.256 | 0.9455 | -1.248 (-3.96%) | 43,100 |
| 20 May 1981 | USD | 31.504 | 31.752 | 31.504 | 31.504 | 0.9845 | +3 (+10.52%) | 18,100 |
| 19 May 1981 | USD | 28.504 | 29 | 28.504 | 28.504 | 0.8908 | 0.0 (0.0%) | 2,700 |
| 18 May 1981 | USD | 28.504 | 28.752 | 28.504 | 28.504 | 0.8908 | 0.0 (0.0%) | 2,500 |
| 15 May 1981 | USD | 28.504 | 29 | 28.504 | 28.504 | 0.8908 | 0.0 (0.0%) | 1,300 |
| 14 May 1981 | USD | 28.504 | 29 | 28.504 | 28.504 | 0.8908 | 0.0 (0.0%) | 2,300 |
| 13 May 1981 | USD | 28.504 | 28.752 | 28.504 | 28.504 | 0.8908 | +0.752 (+2.71%) | 9,000 |
| 12 May 1981 | USD | 27.752 | 28.256 | 27.752 | 27.752 | 0.8672 | +0.248 (+0.90%) | 13,000 |
| 11 May 1981 | USD | 27.504 | 28 | 27.504 | 27.504 | 0.8595 | -0.248 (-0.89%) | 4,900 |
| 8 May 1981 | USD | 27.752 | 28.256 | 27.752 | 27.752 | 0.8672 | 0.0 (0.0%) | 2,200 |
| 7 May 1981 | USD | 27.752 | 28.256 | 27.752 | 27.752 | 0.8672 | 0.0 (0.0%) | 7,500 |
| 6 May 1981 | USD | 27.752 | 28 | 27.752 | 27.752 | 0.8672 | +0.496 (+1.82%) | 54,300 |
| 5 May 1981 | USD | 27.256 | 27.752 | 27.256 | 27.256 | 0.8518 | -0.496 (-1.79%) | 1,900 |
| 4 May 1981 | USD | 27.752 | 28.256 | 27.752 | 27.752 | 0.8672 | -0.504 (-1.78%) | 6,500 |
| 1 May 1981 | USD | 28.256 | 28.504 | 28.256 | 28.256 | 0.883 | 0.0 (0.0%) | 3,300 |
| 30 Apr 1981 | USD | 28.256 | 28.752 | 28.256 | 28.256 | 0.883 | 0.0 (0.0%) | 8,700 |
